Backing up what PPRune Dispatcher has written above..... show us some proof and maybe then we'll believe it, i.e. PPRuNe Dispatcher has got our server(s) sewn-up tighter than a ducks a_rse in water - jeez, even I have trouble getting in sometimes !
That said, in this day and age running a PC or any network connection without some form of firewall (hardware / software) in the link between it and the web is just asking for it, imho !